管理包時出現“ImportError: No module named _struct”錯誤

我正在執行基本 OS 0.2（基於 Ubuntu 12.04），從今天開始，我在嘗試安裝/升級軟體包時看到一個奇怪的錯誤。例如，剛才我做了一個：

sudo apt-get update

效果很好，然後是：

sudo apt-get upgrade

嘗試返回這個：

Setting up idle-python2.7 (2.7.3-0ubuntu3.5) ...
Traceback (most recent call last):
 File "/usr/lib/python2.7/compileall.py", line 16, in <module>
   import struct
 File "/usr/lib/python2.7/struct.py", line 1, in <module>
   from _struct import *
ImportError: No module named _struct
dpkg: error processing idle-python2.7 (--configure):
subprocess installed post-installation script returned error exit status 1
Errors were encountered while processing:
idle-python2.7
E: Sub-process /usr/bin/dpkg returned an error code (1)

到底是怎麼回事？顯然這與python包有關，但我仍然可以python毫無問題地執行腳本。我怎樣才能解決這個問題？

---

添加

按照我嘗試的答案中給出的建議：

sudo apt-get --reinstall install python python-support

這返回：

Reading package lists... Done
Building dependency tree       
Reading state information... Done
0 upgraded, 0 newly installed, 2 reinstalled, 0 to remove and 0 not upgraded.
1 not fully installed or removed.
Need to get 0 B/192 kB of archives.
After this operation, 0 B of additional disk space will be used.
(Reading database ... 864980 files and directories currently installed.)
Preparing to replace python 2.7.3-0ubuntu2.2 (using .../python_2.7.3-0ubuntu2.2_i386.deb) ...
Unpacking replacement python ...
Preparing to replace python-support 1.0.14ubuntu2 (using .../python-support_1.0.14ubuntu2_all.deb) ...
Unpacking replacement python-support ...
Processing triggers for man-db ...
Processing triggers for doc-base ...
Processing 1 changed doc-base file...
Registering documents with scrollkeeper...
Setting up idle-python2.7 (2.7.3-0ubuntu3.5) ...
Traceback (most recent call last):
 File "/usr/lib/python2.7/compileall.py", line 16, in <module>
   import struct
 File "/usr/lib/python2.7/struct.py", line 1, in <module>
   from _struct import *
ImportError: No module named _struct
dpkg: error processing idle-python2.7 (--configure):
subprocess installed post-installation script returned error exit status 1
Setting up python (2.7.3-0ubuntu2.2) ...
Setting up python-support (1.0.14ubuntu2) ...
Traceback (most recent call last):
 File "/usr/local/lib/python2.7/site.py", line 548, in <module>
   main()
 File "/usr/local/lib/python2.7/site.py", line 530, in main
   known_paths = addusersitepackages(known_paths)
 File "/usr/local/lib/python2.7/site.py", line 266, in addusersitepackages
   user_site = getusersitepackages()
 File "/usr/local/lib/python2.7/site.py", line 241, in getusersitepackages
   user_base = getuserbase() # this will also set USER_BASE
 File "/usr/local/lib/python2.7/site.py", line 231, in getuserbase
   USER_BASE = get_config_var('userbase')
 File "/usr/local/lib/python2.7/sysconfig.py", line 516, in get_config_var
   return get_config_vars().get(name)
 File "/usr/local/lib/python2.7/sysconfig.py", line 449, in get_config_vars
   import re
 File "/usr/local/lib/python2.7/re.py", line 105, in <module>
   import sre_compile
 File "/usr/local/lib/python2.7/sre_compile.py", line 14, in <module>
   import sre_parse
 File "/usr/local/lib/python2.7/sre_parse.py", line 17, in <module>
   from sre_constants import *
 File "/usr/local/lib/python2.7/sre_constants.py", line 18, in <module>
   from _sre import MAXREPEAT
ImportError: cannot import name MAXREPEAT
Errors were encountered while processing:
idle-python2.7
E: Sub-process /usr/bin/dpkg returned an error code (1)

所以這是不行的。

我找到了一種通過簡單地刪除idle-python2.7包來解決這個問題的方法：

sudo apt-get remove idle-python2.7  

如此處所述。

搜尋這個出現了一些可以嘗試的東西。

1. 重新安裝python

在手動建構和安裝 python 2.6 後找到了這個連結：Broken python (2.7)。建議是像這樣重新安裝：

$ sudo apt-get --reinstall install python python-support

2. 確保軟體更新應用程序已啟用網際網路

找到這個連結：更多包依賴問題，我總是在全新安裝後遇到很多問題。

我進入更新管理器/設置 Ubuntu 軟體選項卡並重新啟用所有可從 Internet 按鈕下載的內容。

引用自：https://unix.stackexchange.com/questions/150106